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    <title>Document</title>
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        function Foo(){
            getName=function(){
                console.log(1);
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            return this;
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        Foo.getName=function(){
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        Foo.prototype.getName=function(){
            console.log(3);
        }
        var getName=function(){
            console.log(4);
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        function getName(){
            console.log(5);
        }
        /////////////////////////
        Foo.getName();
        getName();
        Foo().getName();
        getName();
        new Foo.getName();
        new Foo().getName();
        new new Foo().getName();
    </script>
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